i also think those look like diamonds for a 6-point star. you ... ummm ... have 7?
get large pieces of paper and draw 60 degree diamonds on them that are larger than your pieced diamonds and all the same size. stick the pieced diamonds in the middle of the drawn diamonds. using the paper diamonds as your foundation, add narrow borders to the pieced start until they are all the same size. sew them together for a new star.
machine applique that star to a pillow background.
start fresh on new stars for your quilt. something learned ... nothing wasted. :wink: